1 /*
2 * Copyright 2013 Red Hat Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: Ben Skeggs
23 */
24
25 #include "priv.h"
26
27 static int
nv20_ram_create(struct nouveau_object * parent,struct nouveau_object * engine,struct nouveau_oclass * oclass,void * data,u32 size,struct nouveau_object ** pobject)28 nv20_ram_create(struct nouveau_object *parent, struct nouveau_object *engine,
29 struct nouveau_oclass *oclass, void *data, u32 size,
30 struct nouveau_object **pobject)
31 {
32 struct nouveau_fb *pfb = nouveau_fb(parent);
33 struct nouveau_ram *ram;
34 u32 pbus1218 = nv_rd32(pfb, 0x001218);
35 int ret;
36
37 ret = nouveau_ram_create(parent, engine, oclass, &ram);
38 *pobject = nv_object(ram);
39 if (ret)
40 return ret;
41
42 switch (pbus1218 & 0x00000300) {
43 case 0x00000000: ram->type = NV_MEM_TYPE_SDRAM; break;
44 case 0x00000100: ram->type = NV_MEM_TYPE_DDR1; break;
45 case 0x00000200: ram->type = NV_MEM_TYPE_GDDR3; break;
46 case 0x00000300: ram->type = NV_MEM_TYPE_GDDR2; break;
47 }
48 ram->size = (nv_rd32(pfb, 0x10020c) & 0xff000000);
49 ram->parts = (nv_rd32(pfb, 0x100200) & 0x00000003) + 1;
50 ram->tags = nv_rd32(pfb, 0x100320);
51 return 0;
52 }
53
54 struct nouveau_oclass
55 nv20_ram_oclass = {
56 .handle = 0,
57 .ofuncs = &(struct nouveau_ofuncs) {
58 .ctor = nv20_ram_create,
59 .dtor = _nouveau_ram_dtor,
60 .init = _nouveau_ram_init,
61 .fini = _nouveau_ram_fini,
62 }
63 };
64